Fuse plug



Feb. 16, 1932. L. BLUMAN FUSE PLUG Filed Sept. 16, 1930 anownto'c Patented Feb. 16, 1932 PATENT OFFICE LOUIS BLUMAN, OF BROOKLYN, NEW YORK FUSE PLUG- Application filed September 16, 1980. Serial No. 482,214.

My invention relates to fuse plugs of the screw type and has for its main object to provide means on such fuses whereby they may be inserted in or removed from the fuse plug sockets without any danger of the person doing so receiving any electric shock from the current in the sockets or from any parts connected therewith. A further object is to so construct these means that they will not materially add to the cost of the fuse plugs.

These and other objects and advantages will be clearly understood from the following description and from the accompanying drawings of preferred embodiments, but it will be readily understood that various modifications may be made without departing from the scope of the invention. In the drawings Fig. 1 is a front elevation of a metalcapped fuse plug showing my invention applied thereto,

Fig. 2 is a side elevation of Fig. 1,

Fig. 3 is a side elevation of a fuse plug made of glass and showing my invention applied thereto,

Fig. 4 is a top view of Figs. 1 and 2, and

Fig. 5 is a top View of Fig. 3.

It is well known that many people are timid about inserting or removing fuse plugs, due to the danger of receiving a shock while doing so. With my improved fuse plug all danger of receiving such shocks is completely eliminated, because, when used as it normally will be used, the fingers of the person handling the fuse can not come in contact with any part of the fuse socket or box.

Referring now to the drawings, my invention consists in adding a handle member 10 to the top 11 of the fuse plug 12 in such a manner that the top itself will act as a finger guard. The handle may be of any shape, but I prefer shaping them as shown in the drawings. In the metal-capped fuse, shown in Figs. 1, 2 and 3, I preferably make the handle by turning up two semi-circular leaves. By this method, not only is the socalled window 13 formed but the handle is constructed from what would otherwise be the scrap from the window opening.

In the case of fuse plugs made of glass,

porcelain, or other insulating materials, I prefer to just mold a handle integral with the body of the fuse plug. A handle such as shown in Figs. 3 and 5 does not interfere with the use of the window 13.

Having described the invention, what I claim as new and wish to protect by Letters Patent is:

1. In a metal-capped fuse plug, a handle extending from the face of said cap and consisting of leaves out from and bent at an angle to said cap face.

2. In a metal-capped fuse plug, a handle formed of leaves sheared out of and bent up from the face of said cap, and the openings formed by said shearing constituting windows in said cap.

3. In a fuse plug having a window in its face, a handle member projecting from and extending diametrically across said face without obscuring said window.

4. In a fuse plug, a metal cap covering the face of the plug and having a window through which the interior of the plug may be observed, and a handle member projecting from 75 and extending substantially diametrically across said metal cap without obscuring the Window formed therein.

LOUIS BLUMAN. 

